A 68-year-old man with well-controlled hypertension has a brief episode of left arm weakness and slurred speech lasting 20 minutes, now fully resolved. Neurological examination is normal. Which is the most appropriate next step in management?AReassure and arrange routine outpatient neurology follow-upBStart Aspirin and refer urgently to a stroke or TIA clinic within 24-48 hoursCStart Warfarin immediately without further work-upDOrder brain MRI in 6 monthsENo antiplatelet therapy because symptoms resolvedCheck my answer